Getting into London Business School?

I am currently an International Business major at Kennesaw State University in Kennesaw, Ga. I have been doing some research on LBS as far as studies, location, and prices go. I ultimately want to graduate from KSU with a bachelors degree in International Business and then go onto LBS to get my MBA. Although it is an expensive school (~$65,000 for 21 months) in one of the most expensive cities in the world, how realistic would it be for a middle class student to afford the costs? Factoring scholarships and the potential job I could have in London, I don't believe it would be completely unrealistic. I just want an opinion first hand. Maybe someone who has been in my shoes.